Speed-gear for motor-vehicles.



No. 353,947. PATENTE MET-21,'1907,

' T. E. EASTIN.. SPEED GEAE vEOE MoToIE' vE'EIcLEs.-

5 PHEETS-SHEBT 1 .QQ *i* 'NEE'.

11.11. ILI

PATENTED MAY 21, 1907;

A l T.}H. BASTIN.I fsPL-Bn GEAR PoR MOTOR vEHmLEs.

APPLWATIONIILED 0013.319136.

No. s53,947. y n PATENTE) MAY 21, 19o-v.

- T. H. BASTIN. y

SPEED GEAR POR MOTOR VEHIGLIIS..v

- APPLIoATIoN FILED ooms. 1906.

5 SHEETS-SHEET 4.'

` N0.E53,'947. PATENTED MAY 21. 1907.

T. EQ BESTEN'. SPEED GEAEEOE MOTOR VEHICLES.

E APPLICATION FILED 0GT.S. 1906.

5 SHEETS-SHEET 5.

, can be readily renewed.

tion, Figure 1 is a central horizontal section -versing mechanism are all carried in the UNrr'ED sims THOMAS HUenBAs'riN, oFEAs'r MoLEsEY, ENGLAND.

SPEED- GEAR Foe Moros-VEHICLES. i'

Specification of Letters Patent.

Patented May 21, 1904?. L

Application filed October 8, 1906. Silerial No, 338,02#

To all whom zit may concern-j Be it known that I, THoMAs HUGH-BASTIN, a subject of the King of Great Britain, residingy at. East Molesey, Surrey, England, have invented certain new and useful Improvements in Speed-Gear for Motor-Vehicles, of which the following is a speciication.`

This invention relates to speed gear for motor vehicles and has for its main object to provide a simple form of reversing mechanism whereby a reversedrive may be obtained vwithout interference with the vspeed ratio of the gear. y f y The invention also has for its object to provide a speed gear which is so mounted in its casing that all the.parts are accessibleand In the accompanying drawings which illustrate one method ofl carrying out this inventhrough the gear, Fig. 2 is an end elevation viewed from the-right of Fig. 1, parts beingl in section, Fig. 3 is an elevation of a detail shown in Fig. 1,Fig. 4 is aside elevation of the lower half of the gear boX,. and Fig. 5 is an eler'ation of a modied form of operating lever. v

. Like letters indicate like parts vthroughout the drawings.

The various parts of the speed gear and relo'wer half A of the casing or gear box and the various shafts and 'operating rods lie in the plane of ldivision between the upper and lower portions of the gear boX which are separable, so that by removing the upper portion A.1 the various members may be lifted out. i

The speed reducing gear is arranged between'two parallel shafts B and C. The shaft `B is connected with the driving means and is carried in split bearings B1 one half of whichlies in the lower portion' of the gear case and .the other half in the upper portion of the samecase. The shaft C is similarly mounted in split bearings C1 and carries at onev end a toothedbevel wheel C2.

Av divided shaft D D1 is carried irisplit bearings Dz'in the gear case and issituated at right angles to the `shafts B and C. The two parts of the divided shaft are connected by a dierential gear comprising as usual bevel wheels D3, one on each portion of the shaft, and intermediate bevev pinions D4. On each half shaft is mounted ,a sleeve, one indicated at D5 and the other at D". fEach4 of these sleeves hasfan enlarged` D7` rie-I. cessed at D8 toreceivey thewheels D?. `The recesses are sufficiently deep to.I permit' the enlarged.` ends of the sleevestol abutandgthe two sleeves are secured togetherI by 'bolts The intermediate pinionsv D4 are 'prefer- -ably four in number andcarried on the ends 'ions and extend beyond the same into` orifiees E1 in the enlarged -ends, of the sleeve D5 D". The axes of the orifices' are arranged to coincide with the planeof division between the two sleeves so that when these are drawn apart, trie four-armed member E is free and can be removed. Inthe center-ofthe member E a transverse pin Egis mounted, the ends of which engage recesses. in the opposed ends of the shaft portions D D11. The object of this pin is to maintain the alinement of the shafts. The pin is itselfrigidly held in place bythe four-armed memberE as this is prevented from movement in either direction by its engagement with the sleeves D5 D6.v

j Itowill be seenthat-the divided shaft does not itself rest in the bearings D2 as it is inclosed at these points by the sleeves but the sleeves areI necessarily arunning fit on the shaft so that when the whole is lifted out of the bearingsand the screws Dgwvithdrawn,

' the two'half portions of the lshaft can be separated and the sleeves withdrawn therefrom without di'liiculty. The sleeve D5 has shoulders D11 D which engage opposite ends of one of the bearings D2 and thus prevent endwise movement `of the shaft. n'

On the sleeve D5 a bevel wheel Fis carried and a similar but opposite bevel Wheel F1 is carried on the other sleeve D6. sions ofthe bevel wheels and the .disposition of the shaft D D1 is such that the wheels lie on opposite sides of the bevel wheel vC2k on the shaft C- and are adapted to imesh with the same. The wheels F Fl lare connectedtogether by spacing rods F2 which pass through y rthe enlarged ends D7 of thesleeves and are a sliding lit therein.A Theserods constitute the only means of permanent connection-between the bevel wheels and thepsleeves so that the former are free to slide upon. the `sleeves although compelled to rotate with them'. i

` The wheel F1 has an extension orsleeve F? in which is formed achannel-Ff1 adaptedtol'receive an operating member whereby i" the wheels may be moved backward and forward l The dimen- IOO IIO

inthe direction of theaxis of the shaft -D D1. In the .channel F4 a divided collar F5 is carried, (Figs. 1 vand 3) the two portions of which'are kepttogether by the arms G1 of an operating member or fork G. The exterior of the collar is preferably made square sothat two ofthe flat faces enga e the arms G1 and these two faces lie paralle to the plane of division G2 of the collar. The square facesprevent -rotation ofthe collar between the arms approximately in a line at right angles to the line of division of the collar, so that these would themselves prevent rotationof the col` lar even if the square faces referred to were omitted.v The fork G is .pivotally mounted in bearings G4* G5 in the bottom and top of thegear case respectively and may be connected with any suitable operating mechanism whereby it can be turned for the purpose of bringing either the wheel F- or F1. into engagement with the wheel C2.

The wheels are-spaced apart at such a dis-A tance that a free position is provided in which neither of the wheels engage the wheel C2.

Eachof'the Wheels F F1 carries a series of pins H which project from that face toward the enlarged ends ofthe sleeves D5 D6 and the sleeves are provided With a series of oriiioes which register ,with the pins and open into the interior chamber'formed by the recesses D8. The pins are of such length that when one wheel is in mesh with the wheel C2 1 and its pins enter the oriiices H to strengthen the means of engagement of the wheel with the sleeve the pins on the other wheel are entirely withdrawn from their oriices. The gear case'A is made to constitute anoil bath and sufficient lubricant is maintained in the chamber in which this part of the mechanism is contained to insure that the enlarged ends ofthe sleeves dip into the same whereupon the lubricant will find its way into those orifices--H which are not engaged by their pins, with the result that when the wheels FF1 are moved axially so that the pins formerly not in engagement enter the oricesxthe lubricant contained therein will be forced into the chamber formed by the recesses Ds. l v The gear as shown 1n the drawlngs is arranged to give four different speeds and the reverse operates with all of the speeds as it will be seen that when the wheel F is brought .into mesh with the Wheel Cz driving will be effected in the. opposite direction to that obtained bythe Wheel F1 shown to vbe in mesh inl vthe drawings, regardless of what gea-rs may be in operation between the shafts B and'C. The lowest speed is obtained by a lpinion J preferably cut solid on the driving shaft. This is adapted to engage a wheel K which together with a second wheel K" is carried on a sleeve K2 free to slide on the shaft with which it is engaged by-a key K3 so that although able to slide it is com elled to rotate with the shaft. Each of t e wheels K K1 `is in the form of a toothed annulus recessed on both sides as 'at KA1 K5 and the sleeve K2 has a flange Kt-wh'ich is made to fit the recesses in the wheels'.l The center of each annulus` is fitted'to the sleeve K2 and both wheel members are secured to the sleeve by bolts and nuts K7 K4* which pass through the {iange K of the sleeve, i

The sleeve is grooved at K" to receive the operating ork L1 of an operating member L which latter slides in bearings formed in the gear casing. A The bearings are so disposed that their axes coincide with. the line of division ef the casingas with those of the shafts B and C so that when the top half kof the casing is removed th'e ioperating member can be lifted out.

The pinion J lies to the left of the wheels K 'K1 and a second pinion J1 is secured to the 4shaft B and lie'sto the -right of these wheels.

This second pinion is adapted to mesh with the wheel K1 so that by moving the sleeveKl2 to the left the low speed is obtained and by moving it to the right the second speed is obtained while in the central position shown, the wheels do not engage either pinion. The object of forming each of the wheels K K1 as Van annular and securing it by bolts and nuts is to enableleach tobe removed and reversed so that when the corners of the teeth on one side are worn by being brought into and out of engagement, the other side of the wheel may be used as the 'engaging side By recessing the wheels and making them recesses to fit. the flange K6 as well as the center of each annulus being made to fit the sleeve, the various parts are rigidly held togetherv and rendered more secure than would be the case if each annular member were merely bolted to theiange without this special fitting, or secured to the sleeve without a flange. ln

f addition to the annular members being reversible they are of course readily renewed by releasing the bolts and replacing them with new members.

The third and fourth speeds are obtained by annular wheels, M M1 respectively. secured to a sleeve M2 having flanges M, ln this case each annular wheel is secured to a separate flange but otherwise the construction is the same as that described with reference to the wheels K .K. The sleeve MP' however is rigidly secured to thc 'shaft C. (lo-operating with the wheels M M1 are two annular Wheels N N1. These wheels are not recessed but aretted 'on a sleeve N* free to IOO IIC

ISO

slide upon the vshaft but connected thereto by a key' N3 so that it rotates' therewith. The sleeve has a shoulder or liange Ni* and the wheels N N1 are secured thereto by bolts'N5 and nuts N6. To further-secure the Wheels, keys l" areintroduced between theexterior face of the sleeve and the interior faces of the wheels. These keys are preferably parallel and are screwed or otherwise secured in the flange N4. By releasing the nuts N"4 the annular wheels N Ni can be' withdrawn fromf the sleeve -and.- reversed or renewed. Thel sleeve N2 has a channel N to receive the fork O1 of an operating' member O. The operate'` ing member() lies in th'e same plane as ther shafts B C andthe-other operating member L, and slides in bearings arranged in the same manner as those .of the lattermember. but is disposed on the oppositelside of the gear case. VBy moving the operati Amember. to the left the" inion N is broug t into.

. mesh with the whee M the` third speed,

l tion it is shown in the figure',l the Iwheel N1 is and by moving itto the right'finwhich posibrought intov mesh with lthe Wheel M1 giving the fourth speed. f

Each' operating member is provided .With a spring-controlled detent P which engagesfa` notch P1. in the member and prevents the member from accidental movement when lying in the neutral position.

The operating members extend beyond the gear case and are provided -With eyes O2 L- re-f spectively. n In suitable beariiigsA1f` on the 'gear case a rocking shaft Ry is'mounted and' the shaft carries twoarm's R1 R? so situated that theoperating-members OV and L lie'be tween them. Each arm carries Japin 1'1'12 respectively and these pins fare ada ted to register with the eyes .in the rods. T e rocking shaft R is free to slide in its bearings a suflicient distance to brin `one or 'other of the pins into engagement wit the cor'respending operating rod. and av sfpri R3 which rests at the one end against oneo y position thatthe low speed'niember L is in engagement with thepin Talon the arnnR2 thereof. j

Foroperating the rocking shaft a hand-lever S isprovided and this is keyed 4fast toa sleeve S1 carried rotatably in a bracket S2secured lto the casing of the'gear. 'At that end ofthe sleeve S1 remote'from the ,operating lever, an arm S3 is secured and the end of'this arm enters a slot S4 which 1s formed'm a horizontal extension S5' of the arm R1 on therockin shaft. Pivoted at T1 to the lever S is a re easing lever T whose end en ages a second lever T2 pivoted at T a tothe ever S. The free end of thislever T2 bears against a plunger on. ush-rod' '1"1 carried .Within 'the sleeve S1 an the opposite end 'of the pushv earings 'A3 and at. the other end against a collar R4 on -the shaft,- always tends to maintain'the-shaft in such' rod is in contact with the end of the rocking shaft R.

It will be seen'thatby swingingthe operating lever S to the left or right of Fig. 1, the operating rod L will be moved to throw in one or other of the low speeds as the rock, ing shaft is moved by the arm S? and the rod L is engaged by thearm R2; and its pin r2.' If now the rocking shaft is moved into brought into the neutral position andlthen,l the auxiliary lever T be operated, the rod T4 -the central position so that the rod L is willbe advanced and thus push forwardthe e rockin `shaft against the action of itsspringff.l R3..unt1l the pin r1 of the arm R1 is brought :into engagement with the eye yin the operat# ing' rodthis movement -will simu taneously bring the pin T? of the armR2 out from its engagement .with the' rod L. Movement of: thefoperating'lever S will-now move the= ment in-.an endwise direction, after it has been operated to throw in one or otheroffthe gears, a guide-plate T5 is secured to the gear case-.and has aslot T6 adapted to receive a" pinor studlT7 on the arm R1 of the rocking Shaft. -When the' rocking shaft is ,at'fthe limitl of its movement in either direction, thel pin' T7 is free of the guideT'but to bring the L rocking shaft from one endwise position into the other, the'pin must pass through the-slot T, and as 4the slot and in are so disposed i that this can only take p ace when the rocking shaft is in the proper position for bringin both of the o erating' rods into the neutra position, it wi l be seen that this insures the :proper alinement of the arm R1 or R2 with Vthat lrod which is about to be engaged before endwise movement off the rockingfshaftis commenced; moreover, after the rocking shaft has been brought tothe limitof its endl-...iv

it cannot be brought out'of engagement-with; that operating rod which at the moment-fis engaged,iwithout iirst bringing the same back to tfhe neutral position.

AS here is' a possibility of the spring mov;

wise movement in either'v direction, and moved to brmg .in one or other of the gears ',11'5 n 1&5 ing'the rocking shaft endwise when passingn l' the notch T 1 to go say, from the lowest to the second speed, the rocking shaft may be positively operated in -both directions if desired. l

.For this purpose 'the operating lever *S(]`ig. v

5) 'has pivoted to it atU1 a lever Uprovided with two operating handlesU2 U3; The end of the llever vcarries a pin U1 which engages oted at U7 to therlever S. Instead of thc push-rod T4 a rod V is mounted in the sleeve S1 and secured at one end by a pin V1 to theA free end of the lever U6 and at the other end to the rocking shaft R. when the handle U3 of the lever U is pressed homeagainst the operating lever S as shown in Fig. 5, the rod V is drawn to the left of that ligure, so that the rocking shaft R is correspondingly moved but when the handle U2 is moved so thatit lies against the operating lever S, the rod V will be advanced, carrying with it the rocking shaft R so that this is brought intol its second operative'position by this means,

The lower half Aof the casing is provided with transverse grooves A4 adapted to receive the frame 'members by which the gear box is securedr to t 1e main frame of the vehicle.` These frame members, one of which is indicated at A (Fig. 2), are bent to correspond to the underside of the gear box and extend upwardly ,on either side of the gear box where they are bent to lie flush with the opposing faces of the two half portions. The' upper portion A1. of the box has lugs A (one of which is shown in Fig. 2) and these extend.

over, and are secured to, the frame members by bolts Af. It will thus be seen that the gear box is rigidly secured to the frame members `and constitutes a strut or brace by which they are connected; the whole .is by this means rendered rigid. i

to secure by Letters Patent is l.. in a change speed gear the combination of, two parallel shafts; a frame to carry the same, speed reducing gears for connecting them, a bevel wheel fast on the end of one shaft, a divided shaft disposed at an angle to the other two shafts, differential gears conl necting the two parts of this4 shaft, oppof sitely disposed bevel wheels carried by the outside member of the diflerential gears 1n such manner that they are compelled tov ro-A into and the other out of mesh, and means for spacing the sliding bevel wheels apart so that at one point 1nl their axial movement vneither wheel is in mesh with the intermediate wheel, substantially as set forth.

s f in a change speed gear tin7 combination oif two parallel shafts, a frame to carry the same, speed reducing gears for connecting them, a driving bevel wheel fast on tie end shaft, a divided shaft disposed at an tothe two other shafts, bevel wheels It will be seen that- What I 'claim as my invention and desire l each of the opposed ends of the por-l.

tions ofthe divided shaft the beveled faces of the wheels being disposed toward each other, auxiliary bevel pinions situated between them, and gearing them together a sleeve mounted free on each portion of the shaft eachv sleeve having an enlarged end recessed to receive the bevel wheel mounted thereon the recesses being of such depth that the ends of the sleeves butt against each other and form between them a chamber, a transverse spindle carried in recesses in the abut ting ends of the sleeves and having mounted free thereon the aforesaid auxiliary pinions, means for securing'these sleeves against endwise movement, op ositely disposed driven bevel wheels carried) on the sleeves in suoli manner that they are compelled to rotate therewith but are free to move axially there-- on, means for supporting the divided shaft in such position that these bevel Wheels lic on opposite sides of the first mentioned driving bevel wheel with which they are adaptedto mesh, means for moving the driven bevel wheels axially to bring one or other into and the other out of mesh, and spacing rods con- ,necting the two driven bevel wheels together and passing through the enlarged ends of the sleeves substantially as set forth.

3. In a change speed gear the combination of, two parallel shafts, a frame tocarry the same, speed reducing gears for connecting them, a driving bevel wheel fast on the end of one shaft, a divided shaft disposed. at an angle to the other two shafts, bevel wheels one on each of the opposed ends of the portions ofthe divided shaft the beveled faces of the wheels being disposed toward each other, auxiliary bevel pinions situated between them, andl gearing them together a sleeve mounted free on each portion ofv the shaft each sleeve having an enlarged end recessed to receive thebevel wheel mounted thereon the recesses being of such depth that the ends of the sleeves butt against each other and form between them a chamber, a transverse spindle carried in recesses in the abutting ends of the sleeves and having mounted free thereon the aforesaid auxiliary pinions, means for securing these sleeves against endwise movement, oppositely disposed driven Vbevel wheels carried on the sleeves in such manner that they are compelled .to rotate therewith but are free to move axially thereon, means for supporting the divided shalt in such position that these bevel wheels lie on opposite sides of the lirst mentioned driviijig bevel wheel with which they are adapted to mesh, means for moving the driven bevel Wheels axially to bring one or other into and the other out o'tmesh, a spacing rod connecting the two driven bevel wheels together and passing through the enlarged ends of the sleeves, the sleeves also having orifices therein whose axes lie parallel with the axis of the divided shaft such oriiices opening into the IIO A(io

chamber formed by the recesses in the enlarged ends of thesleeves, pins on the driven bevel wheels adapted to' enter the orifices of 1 the-sleevesasone wheel or other is brought intonfesh but .which are withdrawn from the orifices ywhenthe wheel on whichthey arev lcarrieihis not in `mesh and a lubricating bath so situated that the enlarged ends of the sleeves dip into. the lubricant contained therein,substantially asset forth.

. 4. 'In achange speed g'ear thecombination of,two' par-alle shafts, arframe to carry the vsame, speed reducing 'gears forvconnecting them,4 a drivingfbevel wheel fast on the end of one shaftfa divided shaft disposed at an aangle tothe `other two shafts, bevel wheels one on each ofthe opposed ends. `of the portionsoffthe ,diyided'shaft the beveled faces ofvtherwheels beingdisposed toward each other,v auxiliary bevel pinions situatedbe-- tween them and gearing them together, a

sleeve mountedffree on each portion of; the

shaft each rsleeve having an enlarged end re- A is;

cessedto receive the bevel wheel mounted thereon the recesses being of suchdepth that i the ends of thesleeves buttagainst eachl otherlandr form between them al chamber, a transverse spindle carried in recesses in the abuttingends of the sleeves. and having -mountedfree thereon the aforesaid auxiliary Vpinions of the differential gear, ,transverse arms onthe spindle extending from opposite sidesy thereof and-lyinglinthe vsame plane as the ,spindle the. ends of the arms` entering recessesinithe abutting ends of the sleeves as vwith theA spindle whereby' endwisemovement of lthe `spindle/is prevented, pinsl projectingffrom the spindle 4in the axial yline ,0f .the'dividedshafts these being dis- 4 posed fon opposite sides of the spindle and each enteringa recess in the end of that shaft portion v toward. it, means y for securing the sleevesv on the divided shaft against endwise movement, oppositely disposed driven bevel eels carried on-the sleeves in such manner they are compelled to rotate therewith that y bu .are free. to move axially' thereon, means ,tin that`these bevel wheels lie'on opposite 5 for siipporting the divided shaft in such posisides of the vfirst mentioned driving bevel wheel with which they are adapted to mesh, inea-ns for moving the driven bevel wheels -I axially lto bring `one or other into and the otherout of mesh, and spa/cin naadsfedffnectingV the, twQdrinen-bevel'ivhee s together and passing, ythrough the enlar ed ends of thev sleeves substantially asset orth.

5. In a change speed gear the combination 'of,twoipara1lle shafts, a plurality of; wheels -fastaon one shaft, a plurality of Wheels comf `-pelledto rotate with but free to slideon thel l other shaft, an operating1 member disposed parallelto' the shafts and in the. same plane,

lIneansfor engaging this operating member with the sliding -wheels on one of the shafts, a v

divided casing wherenthe shafts and operating members are mounted the division l being arranged `in the same plane as ,that occupied by `the shafts so: that when one half of the casing removed the shafts andy oper-v atingy members can be liftedjout, a bevel Wheel fast on the end of one of these`shaft's, 'a thirdshaft disposed at ,an angle to the other two shafts, oppositelydisposed bevel wheels carried thereon insuch manner that they are vcompelled to rotate therewith` but are free to vmove axially thereon, means for supportin this shaft in such position that the'bevel Wheels lie on opposite sides of the first mentioned y bevel wheel Vwith 'which they vare adapted to mesh, means for moving the slid- 'ing bevel wheels axially to bring one or other of them into and the other ont of mesh,l and means for spacing the sliding bevel wheels fapart so that at one point in their axial movement neither wheel is 1n mesh with the inter- I mediate wheel, .substantially as set forth.

6. lIn a'chan e speed gear the-combination of, two parallel lon one shaft, a toothed :wheel fast ,on the second shaft, atoothed wheel free to slide on the first shaft but compelled to rotate therewith and adapted to en age the fast wheelon the second shaft, a toot led wheel free to slide .divided casing wherein the shafts and operating members. are mounted the division being arranged in the 'same plane as that occupied `by` the shafts so that when one half of the'casing is removed the shafts and operating members can be lifted out, a bevel wheel fast'on the end of one of `these shafts, a

third shaft disposed at an angle to theother two shafts, .oppositely disposed bevel wheels carried thereon in such manner that they are compelled to rotate therewith but are free to move axially thereon', means for supportin this shaft in such position that the beve wheels lie on opposite sides of the first'mentioned bevel wheel with which they are adapted to'mesh, means for moving thesliding bevel wheels axially to bring one or other of them into and the other out of mesh,

shafts, a `toothed wheel fast r ITO:

and means for spacing the sliding bevel' Wheels apart so that at one point 1n their axial movement neither wheel is in mesh with the intermediate wheel, substantiallyas set forth. 7. In a change speed gear the combination of, two parallel shafts, a frame to carry the same, a toothed Wheel fast on one shaft, a

toothed wheel fast'on the second shaft, a toothed Wheel free to slide on the first shaft but compelled to rotate therewith andA ad apted to engage thefast wheel on the second shaft, a toothed wheel free to slide on the second shaft but compelled to rotate therewith and adapted to engage the fixed wheel on the first shaft, an operating rod disposed parallel to the shafts and in the same plane, :o means for engaging this operating member with the sliding wheel on the first shaft, a second operating rod disposed parallel to the shafts and in the 'same plane, means for engaging this operating member with the sliding wheel on the second shaft, a rocking shaft disposed at right angles to the operating rods and adapted to slide endwise in its supports, arms on the rocking shaft disposed one on one side of one of the operating rods zo and the other on the opposite side of the other rod, means for sliding the rocking shaft endwise so that one or other of the arms is moved toward one of thel operating rods, a pin on one of the relatively advanced members whereby engagement is effected the opposite part being recessed to receive the pin the arms being so spaced apart-that when one arm is in engagement with one of the operate ing rods the other is clear of the second operating -rod, a bevel wheel fast on the end of one of these shafts, a third shaft disposed at an angle to the other two shafts, oppositely disposed bevel wheels carried thereon in such .manner that they are compelled to rotate therewith but are free to move axially there on, means for supporting this shaft in such position that the bevel wheels lie on opposite sides of the firstv mentioned bevel wheel with which they are adapted to mesh, means for moving lthe sliding bevel wheels axially to bring one or other'of them into and the other out of mesh, and means for spacing the sliding bevel wheels apart so that at one point in their axial movement neither wheel is lin mesh with the intermediate wheel, substantially as set forth.

8. In a change speed gear the combination'` of, two parallel shafts, a frame to carry the same, a toothed wheel fast on one shaft, a toothed wheel fast on the second shaft,A a toothed wheel free to slide on the first shaft but compelled to rotate therewith and adapted to engage the fast wheel on the second shaft, a toothed wheel free to. slide on the second shaft but compelled to rotate therewith and adapted to engage the fixed wheel on the first shaft, an operating -rod disposed parallel to the shafts and in-the same plane, means for engaging this operating member with the sliding wheel on the-first shaft, a second operatingroddisposed parallel to the shafts and inthe same plane, meansfor engaging this f operating memberwith the sliding wheel on the second shaft, a-r'ockingshaft disposed at @seriele auslesen the Operaties -rodsanaeeeptf ed to slide in its supports, arms on the-rockn ing shaft disposed one on one side of one of the operating rods and the other on the opposite side of the other rod the arms being adapted to engage with the rods, means'for sliding the sliart endwise so that one or other of the arms is moved into engagement with one of the operating rods the second arm being at such time brought out of engagement with the second rod, a guide having a recess opposed to -the endwise ,movement of the rocking shaft, a proiectiqn on the rocking shaft adapted to ente'i,1 the recess of the guide' as the shaft is moved endwjse whereby the shaft is anvays brought to theF same angular position iiefore it can move endwise the guide being of such length that when the shaft arrives at the limit of its endwise movement in either direction the engaging part thereof is wheel with which they are adapted to mesh,` l

means for moving the sliding bevel wheelsv axially to bring one or other of them into and the other out of mesh, and means for spacing the sliding bevel wheels apart so that at one point Ain their axial movement neither wheel is in mesh with the. intermediate wheel, substantially as set forth.

9. In a change speed gear the combination of, two parallel shafts, `a frame to carry the same, a toothed wheel fast on one shaft, a toothed wheel fast on the sec'ond shaft, a toothed wheel free to slideon the first shaft but compelled to rotate therewith and adapted to engage the fast wheel on` the second shaft, a toothed wheel free to slide on the second shaft but compelled to rotate therewith and adapted to engage the fixed wheel on the first shaft, an operating rod disposed parallel to the shafts and in the same plane, means for engaging this operating member with the sliding wheel on the first shaft, a second operating rod disposed parallel to the shafts and in the same plane, means for engaging this operating member with the sliding wheel on the second shaft, a rocking shaft disposed at right angles to the operating rods and adapted to slide. in its supports, arms on the rocking shaft disposed one on one side of one of the operating rods and the other on the opposite side of the other rod the arms beine* adapted to engage with the rods, means for stliding the shaft endwises'p that one or'other ofthe arms is moved into' engagement with one of the operating vrods the second arm being at such time brought out of engagement with the second-Jod.. a-,guide having a recess opposed vto IOC ' the endwise movement of the rocking shaftA a' eaaea? projection on the rocking shaft adapted to enterA the recess'of the guidei as the-'shaft is moved endwisewhereby the shaft is always brought'v to :the ysaine angnlar position before it can move endwise the guide being of such length that when lthe shaft 'arrives at the limit of its endwise ,movement in either direction the. engaging part thereof is free of the guide, an operating lever free to swing aboutl a centerAco-axial with the axis'ofy the rocking shaft,

means whereby the lever is engaged with the rocking shaft in such manner that the latter is free to move endwise without becoming disengaged from the lever, fa second lever pivyoted tothe first in suchmanner that it. swings about an Aaxis'at right angles to the axis of the rocking shaft this lever extending from both carried thereon in such manner th'at'they are compelledto rotate therewitlibut are free to .move axially thereon. means for supporting,

this shaft in such position that the bevel wheels lie on opposite sides of the first mentioned bevel'wheel with which they are adapted to mesh, means for` moving the sliding bevel wheels axially tovbring one or other ofl them into andthe other outof'mesh, and

means for spacing the sliding bevel wheels n' apart so that at one point in their axial'movement neither wheel is in mesh withthe intermediate wheel, substantially 4as set forthj 10. .ln a change speed gear the combinae tion of, 'two' parallel shafts, a frame tp carry the saine, a flange carried by and rotating with one shaft, a reversible externally toothed annulus recessed on each side to receive and fit the flange the center of the Aannnlns ybeing fitted to thatpart over which it is slid to en gage the flange, means for detachably securing the annulus to the flange', a wheel onthe second-shaft adapted to gear with this annular toothed wheel, a'bevelwheel fast on the end of one shaft, a third shaft disposed at an angle to the other two shafts, oppositely 'disposed' bevel wheels carriedthereon in such manner- Athat they,are compelled te rotate therewith but .are free to move axially thereon, means- .for supporting this shaft in such position that the bevel Wheels lie on opposite sides of the first mentioned bevel wheel with ,which they are adapted to mesh, means for moving the sliding bevel wheels axially to bring one or other4 of them into and theother out of mesh,

'and means for spacing the sliding bevel wheels l1. In a change speed gear the combina- Q tion of, two parallel shafts, a frame to carry the sai-ne, a sleevel on one of. these` shattseJ flange on the' sleeve, la `reversible externally toothed annulus recessedat both] sides to receive and lit the fl-ange,fthe center portion of the annulus being made a fit for the sleeve, means for'fdetachably securing the annulus to the flange, a wheel on the second shaft adapted-to gear'with `this annular toothed wheel, a bevel wheel. fast on the end of one shaft, a thirdshaft disposed at an-a`n" gle to the other two shafts,'oppositely disposed bevel wheels-carried 'thereon inisuch manner ,that they are compelled te rotate therewith ibut are free to move axially thereon, means 4forsupporting thisshaft in such position that' `the bevel-wheels lie on opposite sides of the first mentioned bevel wheel with which they are adapted` to mesh, means for movingthe sliding bevel wheel axially to bring one ors other of them into and the other outof mesh, and means for spacing the sliding bevel wheels 4apart so that at one` point in their axial movef ment neither wheel is inmesh with the,intermediate Wheel, substantially asset forthi` 12. In a change speed gear the combination of, two parallel shafts, ai frame toc-'arry the same, aflange carried by andrrotatiiig with one shaft, a reversible externally toothed annulns recessed on' each side to'receive 'and fit the flange, thecenter ofthe annuluslibeing fitted to that part over which it isslidftofengage the flange, means for detachably securing the annulusto the flange, a sleeve om the secondshaft, aflange thereon, anl externally toothed -annulus adapted 4to` mesh .withi the fannulns on the othershaft, fitted with a boss on--the sleeve so that it butts a ainst the flange, keys between the sleeve` an annulus, bolts connectingthe annnlus with the flange, a bevel wheel fast on the jendv of one shaft, a third shaft disposed at an angle to the other two shafts, oppositely disposed bevel wheels carried thereon in such manner that they are compelled to rotate therewith but are free to move axially thereon, means for-supporting this sh aft in such position that the bevel. wheels lie on opposite sides of the first mentioned bevel wheel with which they are ad apted to mesh, means for moving the'sliding bevel wheels axially to bring one or other of them into and the other out of mesh, and means for spacing the sliding bevel wheels apart so that at one point in their axial movement neither wheel is in mesh with the intermediate wheel, substantially as setforth. 13. ln a change speed gear the combination of, two parallel shafts, a frame to carry thel same, a plurality of wheels fast on one shaft, a plurality of wheels compelled to rotate with but frceto slide on the second shaft and adapted to mes-h with the wheels on the first shaft, `a bevel wheel fast on the end of one of these shafts, a third shaft disposed at @eagle tothe other two .shafts oppositely dlsposedbeveliwheels carried thereon insuch.

i mannerfthat'they Vare compelled to, 'rotate therewith but-arefree .to lmove axially thereon,me ans for su portin .this shaft n such Posillipo Ythat the. evel w eels lie on opposite 2sidesof ythe first mentionedbevel wheel/withv *which theyT are adapted to mesh, meanstfo'r lSpacingthe sliding bevel wheelsapart so that at on'e point in their axial .movement neither wheel mesh with theintermediate wheel, ano eating member forsliding oneof the spee .changing l.portions of thegear, a channeledsleeveon suchslid-ing ortion, a collar.

transversely divdedand a a ted -to lie: in theohanne .of the sleeve, a for on the operating'- member the; two,arm s' O f Wllcharey s. aged apar-ltsufleiently wide to embrace t e. collar, means-,forsupiporting the operat aiming member in such position. that the arms of ,theuforllV en'age .the l.half collar portions at points on ja inelv ap roximately at right anglesto the .plane o ivision .and thus hold the twoportions together', and trunnions on one of. the. engang: -members,(namely -the fork?` @rst shaft,- a bevel Wheel fast on the end of position that the transversely dividedv and a p -theohannel of the sleeve, a for c on the operone of these shafts,' a third-shaft disposed-at an i angle lto .th'ef other two shafts, Yoppositely disposed bevel wheelscarriedthereon in such:

manner that'vthey are compelled to rotate therewith but are free to move axially there.- on, means -forsu portin this shaft insuch bevel w eels lie lon op lsite sides of the firstmentioned bevel whee with -which they are adapted to mesh; means for spacing the'sliding bevel wheelsapart so that at one point in their axial movement neither wheel isin mesh with the intermediate wheel,

an o eratingfmember for sliding one of the spee changing portions of the gear, a channeled sleeve on such slidingJortion7 .a collar a ted to' lie in ating member .the two arms of which are spaced apart sufficiently wide to embrace t e collar, a trunnion on eac-h half portion of theoollar the trunnions being disposed in a plane at rightangles to the plane of division, and :means .for supporting the operating member in such position that the arms of the fork each of which is slotted 4can be slid into -.-positionso that the trunnions enter the slots and the arms prevent the vfalling apart'of the two half collar portions, substantially as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two -subscribin Witnesses.

T OMAS HUGH BASTIN. Witnesses:

HARRY S. BRIDGES, A. M. HAYWARD. 

